Table 1

Characteristics of patients aged 75 years and older

Total n=979No P-PCI n=181P-PCI n=798P value
Age83.1 (6.01)85.0 (6.20)82.7 (5.89)<0.001
Sex women (%)39.846.438.30.055
Killip III-IV admission (%)15.327.612.5<0.001
GFR <60 mL/min (%)42.452.340.10.004
Glucose <126 mg/dL (%)65.468.264.70.432
Diabetes mellitus (%)0.668
 No65.768.065.2
 Yes, diet control3.472.763.63
 Yes, OADs control21.518.822.1
 Yes, insulin control8.8910.58.52
 Yes, diabetes in hospitalisation0.510.000.63
Smoker (%)<0.004
 Never64.575.162.0
 Actual11.88.2912.7
 Ex-smoker >30 days23.716.625.3
Arterial hypertension73.075.172.60.539
Previous MI14.614.414.71.000
Previous angina11.616.610.50.031
Previous CHF4.6010.53.26<0.001
Previous stroke9.6013.88.650.047
Previous PCI11.07.7311.80.151
Previous CABG2.152.762.010.568
COPD13.614.913.30.646
CRF13.819.912.40.012
Antiplatelet (%)<0.001
 None4.198.293.26
 One antiplatelet*5.5216.63.01
 Combination†90.375.193.7
Heparin hospitalisation (%)<0.001
 None17.534.813.5
 UFH41.512.248.1
LMWH29.048.624.6
 UFH+LMWH12.14.4213.8
ACE inhibitors (%)57.847.560.20.002
Beta-blockers (%)55.548.657.00.049
Diuretics (%)39.351.436.6<0.001
Coronariography (%)<0.001
 No10.456.40.00
 Yes89.142.599.6
Major bleeding3.162.904.420.405
Exitus, reinfartcion or Killip III-IV during hospitalisation22.740.918.5<0.001
  • Results with and without P-PCI.

  • *Only aspirin or ticlopidine or clopidogrel or others.

  • †Two antiplatelet drugs.

  • CABG, coronary artery bypass grafting; CHF, chronic heart failure; COPD, chronic obstructive pulmonary disease; CRF, chronic renal failure; GFR, glomerular filtration rate; LMWH, low molecular weight heparin; MI, myocardial Infarction; OADs, oral antidiabetic’s drugs; PCI, percutaneous coronary intervention; P-PCI, primary percutaneous coronary intervention; UFH, unfractioned heparin.